JPS5538708B2 - - Google Patents

Info

Publication number
JPS5538708B2
JPS5538708B2 JP654373A JP654373A JPS5538708B2 JP S5538708 B2 JPS5538708 B2 JP S5538708B2 JP 654373 A JP654373 A JP 654373A JP 654373 A JP654373 A JP 654373A JP S5538708 B2 JPS5538708 B2 JP S5538708B2
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP654373A
Other languages
Japanese (ja)
Other versions
JPS48104447A (enrdf_load_stackoverflow
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPS48104447A publication Critical patent/JPS48104447A/ja
Publication of JPS5538708B2 publication Critical patent/JPS5538708B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
    • G01J3/524—Calibration of colorimeters
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Amplifiers (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP654373A 1972-01-14 1973-01-12 Expired JPS5538708B2 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21777572A 1972-01-14 1972-01-14

Publications (2)

Publication Number Publication Date
JPS48104447A JPS48104447A (enrdf_load_stackoverflow) 1973-12-27
JPS5538708B2 true JPS5538708B2 (enrdf_load_stackoverflow) 1980-10-06

Family

ID=22812459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP654373A Expired JPS5538708B2 (enrdf_load_stackoverflow) 1972-01-14 1973-01-12

Country Status (5)

Country Link
US (1) US3724954A (enrdf_load_stackoverflow)
JP (1) JPS5538708B2 (enrdf_load_stackoverflow)
CA (1) CA1012248A (enrdf_load_stackoverflow)
DE (1) DE2301656C2 (enrdf_load_stackoverflow)
GB (1) GB1372832A (enrdf_load_stackoverflow)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH566543A5 (enrdf_load_stackoverflow) * 1972-04-28 1975-09-15 Micromedic Systems Inc
US3876878A (en) * 1972-05-22 1975-04-08 Said Frank By Said Miles And A Control system for color pattern generator
US3828226A (en) * 1972-12-20 1974-08-06 Carlson Co Chesley F Exposure override control
JPS5059034A (enrdf_load_stackoverflow) * 1973-09-24 1975-05-22
US3909609A (en) * 1973-10-29 1975-09-30 Xerox Corp Light source measuring apparatus
US3984185A (en) * 1974-08-19 1976-10-05 Durst Ag Fabrik Fototechnischer Apparate Bozen Process and apparatus for filter value and exposure time determination in photographic color printing and enlarging
US4075559A (en) * 1975-07-24 1978-02-21 Westinghouse Electric Corporation Technique for extending the range of a signal measuring circuit
US4236079A (en) * 1977-12-02 1980-11-25 General Electric Company Tomographic scanning apparatus
US4309604A (en) * 1978-07-24 1982-01-05 Sharp Kabushiki Kaisha Apparatus for sensing the wavelength and intensity of light
US4231654A (en) * 1979-04-27 1980-11-04 Michael E. Gorski Controller for photographic enlarger or the like
JPS58223040A (ja) * 1982-06-22 1983-12-24 Nippon Koden Corp 呼吸気ガス濃度測定装置
US4628277A (en) * 1985-05-01 1986-12-09 General Electric Company Femtoammeter
US4792829A (en) * 1986-04-03 1988-12-20 Firmani Alexander D Light-exposure control unit
US7498779B2 (en) * 2005-01-28 2009-03-03 Broadcom Corporation Voltage supply interface with improved current sensitivity and reduced series resistance
EP2926109B1 (en) 2012-12-03 2020-02-05 Dockon AG In medium communication system using log detector amplifier
JP6416195B2 (ja) 2013-03-15 2018-10-31 ドックオン エージー 固有周波数復調能力を備えた周波数選択性対数増幅器
US9236892B2 (en) 2013-03-15 2016-01-12 Dockon Ag Combination of steering antennas, CPL antenna(s), and one or more receive logarithmic detector amplifiers for SISO and MIMO applications
EP2973994B1 (en) * 2013-03-15 2021-07-21 Dockon AG Logarithmic amplifier with universal demodulation capabilities
WO2014152307A1 (en) 2013-03-15 2014-09-25 Dockon Ag Low-power, noise insensitive communication channel using logarithmic detector amplifier (lda) demodulator
US11082014B2 (en) 2013-09-12 2021-08-03 Dockon Ag Advanced amplifier system for ultra-wide band RF communication
TWI568173B (zh) 2013-09-12 2017-01-21 多康股份有限公司 作為無頻率轉換之高敏感選擇接收器之對數檢測放大系統
US11183974B2 (en) 2013-09-12 2021-11-23 Dockon Ag Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237028A (en) * 1963-02-21 1966-02-22 James F Gibbons Logarithmic transfer circuit
US3448289A (en) * 1966-05-20 1969-06-03 Us Navy Logarthmic amplifier
US3528749A (en) * 1966-12-09 1970-09-15 Itek Corp Apparatus for measuring optical density
GB1214172A (en) * 1968-07-22 1970-12-02 Crosfield Electronics Ltd Improvements relating to image reproducing apparatus
GB1297364A (enrdf_load_stackoverflow) * 1969-04-16 1972-11-22
US3653759A (en) * 1970-12-08 1972-04-04 Eastman Kodak Co Automatic control of color correction of photographic printers

Also Published As

Publication number Publication date
JPS48104447A (enrdf_load_stackoverflow) 1973-12-27
CA1012248A (en) 1977-06-14
DE2301656C2 (de) 1983-05-26
GB1372832A (en) 1974-11-06
DE2301656A1 (de) 1973-07-19
US3724954A (en) 1973-04-03

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